Search a number
-
+
61432374330 = 23251016758237
BaseRepresentation
bin111001001101101001…
…111010010000111010
312212120022211221221100
4321031221322100322
52001303141434310
644115512552230
74303231365105
oct711551722072
9185508757840
1061432374330
1124064a790a8
12baa56b2676
135a40432572
142d8abd173c
1518e838eec0
hexe4da7a43a

61432374330 has 48 divisors (see below), whose sum is σ = 161305624584. Its totient is φ = 16219766400.

The previous prime is 61432374293. The next prime is 61432374337. The reversal of 61432374330 is 3347323416.

61432374330 is a `hidden beast` number, since 614 + 3 + 2 + 3 + 7 + 4 + 3 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 50837171841 + 10595202489 = 225471^2 + 102933^2 .

It is not an unprimeable number, because it can be changed into a prime (61432374337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3370029 + ... + 3388208.

Almost surely, 261432374330 is an apocalyptic number.

61432374330 is an abundant number, since it is smaller than the sum of its proper divisors (99873250254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61432374330 is a wasteful number, since it uses less digits than its factorization.

61432374330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6758351 (or 6758348 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 36.

Adding to 61432374330 its reverse (3347323416), we get a palindrome (64779697746).

The spelling of 61432374330 in words is "sixty-one billion, four hundred thirty-two million, three hundred seventy-four thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 101 202 303 505 606 909 1010 1515 1818 3030 4545 9090 6758237 13516474 20274711 33791185 40549422 60824133 67582370 101373555 121648266 202747110 304120665 608241330 682581937 1365163874 2047745811 3412909685 4095491622 6143237433 6825819370 10238729055 12286474866 20477458110 30716187165 61432374330